Gearing.



A. S; KIBBY.

GEARING.

APPLICATION FILED AUG.13, 1910.

Patented Mar. 19, 1912.

2 SHEETS-SHEET 1.

COLUMBIA PLANUUKAPN $0.. WASHINGTON. n. c.

A. S. KIBBY.

GEARING.

APPLIOATIOK TILED AUG. 13, 1910. I

1,020,91 3, Patented Mar. 19, 1912.

. 2 snnn'rs snnn'r 2.

QZenJ coLuMmA PLANOGRAPN coqwAsmN uuuuuuuu c.

ALBERT s. KIIBBY, or PERRY, IOWA.

GEARIN'G.

Specification of Letters Patent.

Patented Mar. 19, 1912.

Application filed August 13, 1910. Serial No. 577,093.

To all whom it may concern Be it known that I, ALBERT S. KIBBY, acitizen of the United States, residing at Perry, in the county of Dallasand State of Iowa, have invented new and useful Improvements in Gearing,of which the following is a full, clear, and exact description.

My invention relates to gearing for operating washing machines, churns,and other similar devices wherein it is desirable to impart a rotaryreciprocal motion to the dasher or agitator-shaft.

One of the objects of my invention is to provide a mechanism in whichthe momentum of a rapidly revolving balance or flywheel is utilized toassist in the reversal of the gearing and to accomplish this in as easyand as noiseless a manner as possible by absorbing or disintegrating theshock and jar, incident to such reversal.

It is also an object of my invention to greatly simplify the mechanismin such a device by eliminating unnecessary parts and also to provideroller or antifriction bearings for the operating rack utilized inperforming the reversal of the rotary reciprocal shaft or agitator. ThisI accomplish by the means and in the manner hereinafter fully describedand as more particularly pointed out in the claims, reference being hadto the accompanying drawings that form a part of this specification,wherein Figure 1 is a vertical front elevation of a laundry washingmachine showing my im proved mechanical movement applied there to. Fig.2 isa vertical side elevation thereof. Fig. 3 is a top plan View of thesame. Fig. 4 is a fragmentary vertical section taken on line 4- 1, Fig.3 and drawn full size. Fig. 5 is a vertical front elevation, similar toFig. 1, of a modified construction, wherein the balance wheel is mountedbelow the tub.

Referring to the drawings, 6 represents a suitable tub-body that ispreferably provided with supporting legs and has a suitable cover hingedto a segmental plate secured to a portion of the top edge of saidtub-body. This cover has suitable bearings at approximately its radialcenter for a vertically disposed rotary reciprocal shaft 7 which latterowing to its construction and arrangement in its bearings, has verticalplay therein in order to accommodate the stirrer head or dasher on itslower inner end. The opposite upper end of this shaft is provided with asuitable pinion 8 that rotates with said shaft and which is engaged andoperated by the teeth of a suitable elongated rack 9 that isreciprocated longitudinally past said pinion in a plane tangential tothe outer circumference thereof and which is actuated by means of asuitable hand-lever fulcrumed to the side of the tub, as willhereinafter be more fully described. This rack 9, which is preferably ofcast-metal, is made with an overhanging lip or flange 10, extendinghorizontally out beyond its teeth, and rests upon the upper smoothsurface of the pinion 8 which thereby assists in sup porting the same.At each end of said rack is an outwardly projecting semi-circularbearing-lug 11 provided with an opening that permits said rack to slidelongitudinally on a horizontally disposed guide-rod 12. Said guide-rodis slightly longer than the distance traversed by the rack at eachreciprocation of the latter and is held in place by suitable L-shapedsupporting brackets 13 that support the rod a suitable distance abovethe cover of the tub. In order to reduce the friction during thereciprocation of said rack, suitable anti-friction rollers 14 are placedbetween the same and the guide-rod 12. These rollers 14: areapproximately spool-shaped; that is, they are cylindrical in outline andhave their sides preferably grooved or coneaved, substantially as shown,to conform to the contour of the guide-rod and a convex embossment orrib 15 made integral with and extending the length of the adjacent faceof the rack. lVhen in position, these rollers are prevented from fallingout by their spool-shape, which causes them to be interlocked with theguide-rod and rib. If desired, a lateral pin 16 may be tapped into therib midway its length and projected into the path of these rollers forthe purpose of keeping them apart and at their respective end of therack.

Rack 9 is preferably reciprocated by means of the vertically disposedhand-lever 17, heretofore mentioned, having its lower end secured on arock-shaft 18, journaled in bearings carried by a suitable bracket 19projecting from the lower edge of the tub. This lever is connected toand actuates rack 9 through the medium of a link 20 one end of whichlatter is pivotally connected to the adjacent end of said rack and theopposite end of which is curved downwardly and connected in a similarmanner to operating lever 17. This particular construction permits ofthe cover of the tub being raised in the usual manner, but withoutthe-necessity of having to disconnect the operative parts or to lift thebalance-wheel of the machine. Rock-shaft 18 is preferably horizontallydisposed and at its end opposite that to which lever 17 is secured, hasan upwardly projecting arm 21 that is deflected outwardly a slightdistance. To the upper end of this arm one end of a link or pitman 22 ispivotally secured, and the opposite end of this pitman engages a lateralpin projecting from a vertically mounted balance-wheel 23. Thisbalance-wheel is mounted on a stud 2A projecting horizontally out from abracket 25 secured to the side of the tub about midway its height.

In operation, when the lever 17 is moved to and fro by the operator, thelink 20 reciprocates the rack 9 causing a rotary reciprocal motion ofthe pinion 8 on the upper end of the stirrer shaft 7. At the same timethe rock-shaft, through the medium of arm 21 and pitman 22 revolves thefly-wheel and the motion thereof greatly assists in the reversalmovement of the mechanism. In Fig. 5 of the drawings a slightly modifiedarrangement of the lower portion of this mechanism is shown. The lever17 and the parts of the top of the tub are the same as in the preferredform just described. The lever 17, however, is fulcrumed near its lowerend to a bracket 26 projecting from the lower edge of the tub and on itsend that extends below this bearing, it is provided with a universaljoint 27. A link or pitman 28 connects this universal joint to acrank-pin on a balance-wheel 29 mounted in a horizontal position beneaththe bottom of the tub. Thus it will be seen that, when the lever 17 ismoved to and fro, the motion of the lower end thereof is transmitted tothe pitman 28 and the balance-wheel 29 is caused to revolve, the effectbeing the same as in the preferred form, shown in the other figures ofthe drawings.

What I claim as new is 1. A mechanical movement comprising a rotaryreciprocal shaft, a pinion thereon, a reciprocal rack engaging saidpinion and provided with a longitudinal rib on one side and anoverhanging lip that rests upon said pinion, supporting means alongsidesaid rack upon which the same is slidably mounted, anti-friction rollersarranged between the rib on said rack and said means, a leveroperatively connected to said rack, a balance-wheel and a link thattransmits the motion of said lever to said balance-wheel.

2. A mechanical movement comprising a rotary reciprocal shaft, a pinionthereon, a reciprocal rack engaging said pinion and provided with alongitudinal rib, a rod upon which said rack is slidably mounted,antifriction rollers arranged between the rib on said rack and said rod,a lever operatively connected to said rack, a balance-wheel, and a linkthat transmits the motion of said lever to said balance-wheel.

3. A mechanical movement comprising a rotary reciprocal shaft, a pinionthereon, a reciprocal rack engaging said pinion and provided with alongitudinal rib, a rod upon which said rack is slidably mounted,antifriction rollers arranged between the rib on said rack and said rod,and having their sides concaved to fit said parts, a lever operativelyconnected to said rack, a balance wheel, and a link that transmits themotion of said lever to said balance-wheel.

4. A mechanical movement comprising a rotary reciprocal shaft, a pinionthereon, a reciprocal rack engaging said pinion, longitudinallyextending means arranged alongside said rack upon which said rack isslidably mounted, anti-frictional devices arranged between said rack andmeans, and a manually actuated lever operatively connected to said rack.I

5. A mechanical movement comprising a rotary reciprocal shaft, a pinionthereon, a reciprocal rack engaging said pinion, and provided with alongitudinal rib on the side thereof, longitudinally extending meansarranged alongside said rack upon which said rack is slidably mounted,anti-frictional devices arranged between said rib and means, and a leveroperatively connected to said rack.

6. A mechanical movement comprising a rotary reciprocal shaft, a pinionthereon, a reciprocal rack engaging said pinion and provided with alongitudinal rib, a rod upon which said rack is slidably mounted,antifrictional rollers arranged between said rib and rod, and a leveroperatively connected to said rack.

In witness whereof I have hereunto set my hand this 8th day of August,1910.

ALBERT S. KIBBY." Witnesses:

ERNEST C. KIBBY, MATTIE M. BRODY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

